Winding machine



Nov. 14,1944. w. T. STEARN/ETAL. 2,362,506

' WI'NDING MACHINE Filed Feb. 9, 1944 INVENTORS WILLIAM 1t sTEARN.

FRANK W.$CHULT E.

\ f rm ATTORNEYS.

Y tained in contact Patented Nov. 14, 1944 j WINDING MACHINE William '1'. Steam and Frank w; Schulte, Cumberland, Md..

assignors to Celanese Corporation of America, a corporation of Delaware Application February 9, 1944, Serial No. 521,631

I (Cl. 242-18) 1 ing Machine Company. A plurality or bank of .6 Claims.

This invention relates to yarn winding machines, and relates more particularly to a pressure stabilizer for winding machines on which cones and like packages of yarn are wound.

In textile machines for winding yarn into cones and like packages wherein the yarn is traversed longitudinally of the yarn package by'a reciprocating yarn guide, the yarn guide is mounted on a traverse'frame assembly and bears against the surface of the yarn package during the winding operation. The traverse frame assembly which carries the yarn guide comprises a pivoted arrangement whereby the yarn guide in contact with the surface of the yarn package is permitted to move progressively as the diameter of the yarn package increases. This movement of the traverse frame assembly is derived from the pressure of the yarn the yarn package,

guide against the surface of the yarn guide being mainwith-the yarn package with a suitable counterweight mounted at the base of the pivotedtraverse framesupporting arm. In prior winding machines of this type, 'diflicultles were encountered in applying the necessary or proper amount of yarn guide pressure with the result that the yarn'package winding pressure and the yarn package density control have. not

been what is desired,

. It is, therefore, an important object of our invention to provide a simple and eflicient means for attachment to the winding mechanism provided with a traverse frame back whereby the motion of said traverse frame back and the yarn guide pressure on the yarn package being Wound may be controlled in a positive manner, i. e. stabilized.

Other objects of this invention, together with certain details of construction and combination.

of parts, will appear from the following detailed description-and drawing.

Our invention will now be described in greater detail, particularly with reference to the accompanying drawing, wherein-a preferred embodiment of our invention is derstood, however, that this description is given shown. It is to be un-- by way of example only and is in no way limi- In the drawing, the figure is an end elevational view showing a yarn winding mechanism of the usual type with our novel pressure stabilizing attachment applied thereto.

Referring now to the drawing, the reference numeral I indicates generally a winding ma.- chine of the conventional type, for example, of

the type manufacturediby the Universal Wind- M I frame through a to a cord H. as

justably mounted in their inner ends such winding units are normally positioned on a single support or frame. The winding machine comprises a spindle 2 driven by suitable means, which is not shown in the drawing since it is not necessary to an the present invention, a traverse frame assembly generally. indicated by reference, numeral 3, a cam box 4, a' yarn tension device 5, stopping wheel 6 normally used in combination with a stopping lever for halting the operation of the winding machine. The traverse frame assembly 3 comprises a reciprocating traverse bar I carrying a yarn guide 8 which rests against and is supported by a plate 9. The traverse bar 1 is adapted to move in a supporting member II, and the provided with the usual countraverse frame maintains the guide 8 in contact with the surface of package I 3. In accordance with our invention, the movement of the traverse its arc is controlled by the action of the pressure stabilizer which comprises a wire hook l5, one end of, which I6 isfastened to the back ofyarn guide plate 9 and the other end The cord passes over a grooved. hardwood snubbing block I8 which is fixed by ,means of a screw l9 to the face plate of cam box 4 of an adjacent winding unit. The cord is also attached. to one end of a wire hook 2|, the other end of which is fastened to a screw 22 ada bracket 23 fastenedto the counterweight l2. The cord and hook arrangement is held in tension by means of a coil spring 24 attachedto the face plate of cam box 4 and hooked to one end of wire hook 2|. Means are provided for controlling the tension of the yarn placed thereon by gate tension device 5. This control of the gate tension is effected through links 25 and 26 connecting the movable gate of the tension device 5 to the counterweight I2, which counterweight is provided with means 21 for holding one endof link 26 in addusted position. The links are interconnected by means of levers 28 and 28 which are fixed at to apln 3i. The initial ten-' sion on the yarn I4 is obtained by adjusting the adequate understanding of. v

graduated beams 34 and 35, respectively. Beam 34 is attached to the free end of lever 29 while beam 39 is fixed to pin 3!.

As the traverse frame moves outward with the building up of the package, tension on the yarn and pressure on the yarn package are reduced in order to compensate for increased yarn take-up speed. The-tension on the yarn is reduced progressively as the movement of the counterbalance l2 draws open the gate of the tension device through links 25 and 26 which are connected by lever 28. The reduction of the pressure on the yarn package is affected by means of coil spring 24 acting through the medium of cord H and connecting wire hooks l5 and 2|.

On the standard arrangement of traverse frame dog mechanism, the traverse frame is controlled in an outward direction only in the winding of the package and excessive pressure against the yarn package results if the dogging mechanism is not maintained in perfect adjustment. In using the pressure stabilizer of our invention, clutch or dogging action is dispensed with and the traverse frame is not subjected to the somewhat erratic behavior of the dog and segment. In other words, the predetermined pressure is 'held throughout the entire operation of yarn package building. This is also reflected in less gate tension vibration which means a more uniform running tension and reduction in yarn package density.

It is to be understood that the foregoing detailed description is given merely by way of illustration and that many variations may be made therein without departing from the spirit of our invention.

Having described our invention, what we desire to secure by Letters Patent is:

1. In a. winding machine, the combination with a take-up means for windng yarn into packages,

of a yarn guide for traversing the yarn on to the package, a traverse frame assembly, including a yarn guide plate and counterweight, in which said yarn guide is reciprocated, and means for reducing the pressure of said yarn guide on the yarn package during the building up of the yarn package, said means comprising an elastic con-.

nection between said yarn guide plate and said counterweight.

2. In a winding machine, the combination with a take-up means for winding yarn into packages, of a yarn guide for traversing the yarn on to the package, a traverse frame assembly, including a yarn guide plate and counterweight, in which said yarn guide is reciprocated, and means for reducing the pressure of said yarn guide on the yarn package during the building up of the yarn package, said meanscomprising a springloaded connectionbetween said yarn guide plate and said counterweight.

counterweights 32 and 33 which are carried on 3. In a winding machine, the combination with a take-up means for winding yam into packages, of a yarn guide for traversing the yarn on to the package, a traverse frame assembly, including a yarn guide plate and counterweight, in which said yarn guide is reciprocated, and means for reducing the pressure of said yarn guide on the yarn package during the building up of the yarn package, said means comprising a spring-loaded rope connected to said yarn guide plate and counterweight and means for snubbing said rope.

4. In a winding machine, the combination with a take-up means for winding yarn into packages, of a yarn guide for traversing the yarn on to the package, a traverse frame assembly, including a yarn guide plate and counterweight, in which said yarn guide is reciprocated, and means for reducing the pressure of said yarn guide on the yarn package during the building up of the yarn package; said means comprising a springloaded rope connected to said yarn guide plate yarn guide and counterweight and a snubbing block spaced from said traverse frame assembly for engaging said rope.

5. In a winding machine, the combination with a take-up means for winding yarn into packages and a tension device for applying a tension on the yarn being wound, of a yarn guide for traversing the yarn on to the package, a traverse frame assembly, including a yarn guide plate and counterweight, in which said yarn guide is reciprocated, means for reducing the pressure of said yarn guide on the yarn package during the building up of the yarn package, said means comprising an elastic connection between said plate and said counterweight, and a connection between said tension device and said counterweight for reducing the tension of said yarn as the pressure on and a tension device for applying a tension on the yarn being wound, of a yarn guide for traversing the yarn on to thepackage, a traverse frame assembly, including a yarn guide plate and counterweight, in which said yarn guide is reciprocated, means for reducing the pressure of said yarn guide on the yarn package during the building up of the yarn package, said means comprising a spring-loaded rope connected to said yarn guide plate and counterweight, a snubbing block spaced from said traverse frame assembly forengaging said rope, and a connection between said tension device and said counterweight for reducing the tension of said yarn as the pressure on the yarn package is reduced.

WILLIAM T. STEARN. FRANK w. SCHUL'I'E.

the yarn package is 

